Stepped filter housing



FIG. 1 is a perspective view of the stepped filter housing, the material shown in dotted lines not being a part of my design;

FIG. 2 is a side view thereof, the material shown in dotted lines not being a part of my design;

FIG. 3 is a top view thereof; and,

FIG. 4 is a plan view thereof, the material shown in dotted lines not being a part of my design. 

We claim the ornamental design for a stepped filter housing, as shown and described. 